Description
Bell & Gossett 108120 Monoflo Fitting Overview
The Bell & Gossett 108120 is a Monoflo Tee fitting engineered for one-pipe hydronic heating systems. With a 1″ sweat main connection and a 1/2″ sweat branch outlet, this fitting creates the differential pressure needed to divert hot water flow from the main loop into individual terminal units — without requiring a separate circulator for each zone.
How Monoflo Fittings Work
Monoflo fittings use an internal venturi design to induce flow from a single-pipe main into radiators, convectors, or fan coil units. By installing a Monoflo fitting at both the supply and return connections of each terminal unit, the system achieves reliable heat distribution throughout the building using a single loop and a single circulator pump.
Key Features
- 1″ sweat (solder) main line connection
- 1/2″ sweat (solder) branch connection
- Internal venturi design induces branch flow from the main loop
- Designed for one-pipe hydronic heating systems
- Compatible with standard copper tubing and sweat-fit installation
- Bell & Gossett quality construction for long-lasting performance
Typical Applications
- Residential and light commercial one-pipe hot water heating systems
- Radiator and convector connections in hydronic loops
- Fan coil unit supply and return connections
- Retrofit and new-construction hydronic piping
Product Specifications
- SKU: 108120
- Brand: Bell & Gossett
- Main Connection: 1″ Sweat (solder)
- Branch Connection: 1/2″ Sweat (solder)
- Fitting Type: Monoflo Tee
- System Type: One-pipe hydronic heating
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